package com.heima.behavior.service.impl;

import com.heima.behavior.service.ApArticleBehaviorService;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.common.constants.user.UserRelationConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.ArticleBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApCollection;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.behavior.pojos.ApUnlikesBehavior;
import com.heima.model.behavior.vos.ArticleBehaviorVO;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

@Service
public class ApArticleBehaviorServiceImpl implements ApArticleBehaviorService {

    @Autowired
    ApBehaviorEntryService behaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Override
    public ResponseResult loadArticleBehavior(ArticleBehaviorDTO dto) {
        ArticleBehaviorVO articleBehaviorVO = new ArticleBehaviorVO();
        articleBehaviorVO.setIsfollow(false);
        articleBehaviorVO.setIslike(false);
        articleBehaviorVO.setIsunlike(false);
        articleBehaviorVO.setIscollection(false);
        //1. 判断用户是否登录
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            //2. 未登录 直接将 4种行为 均返回false
            return ResponseResult.okResult(articleBehaviorVO);
        }
        //3. 如果登录
        //4. 查询行为实体
        ApBehaviorEntry behaviorEntry = behaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if (behaviorEntry == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID, "查询行为实体对象为空");
        }
        //5. 根据行为实体 文章ID查询 是否点赞
        ApLikesBehavior likesBehavior = mongoTemplate.findOne(Query.query(Criteria.where("entryId").is(behaviorEntry.getId())
                .and("articleId").is(dto.getArticleId())), ApLikesBehavior.class);
        if (likesBehavior != null) {
            articleBehaviorVO.setIslike(true);
        }
        //6. 根据行为实体 文章ID查询 是否不喜欢
        ApUnlikesBehavior unlikesBehavior = mongoTemplate.findOne(Query.query(Criteria.where("entryId").is(behaviorEntry.getId())
                .and("articleId").is(dto.getArticleId())), ApUnlikesBehavior.class);
        if (unlikesBehavior != null) {
            articleBehaviorVO.setIsunlike(true);
        }
        //7. 根据行为实体 文章ID查询 是否收藏
        ApCollection collection = mongoTemplate.findOne(Query.query(Criteria.where("entryId").is(behaviorEntry.getId())
                .and("articleId").is(dto.getArticleId())), ApCollection.class);
        if (collection != null) {
            articleBehaviorVO.setIscollection(true);
        }
        //8. 更具登录用户id 去redis中查询是否关注该作者
        Double score = redisTemplate.opsForZSet().score(UserRelationConstants.FOLLOW_LIST + user.getId(), String.valueOf(dto.getAuthorApUserId()));
        if (score != null) {
            articleBehaviorVO.setIsfollow(true);
        }
        //9. 封装结果 返回
        return ResponseResult.okResult(articleBehaviorVO);
    }
}
